The Flash (2014)/I Know Who You Are

I Know Who You Are
Season 3, Episode 20
Airdate	May 2, 2017
Production Number	T27.13120
Written by	Bronwen Clark & Joshua V. Gilbert
Directed by	Hanelle M. Culpepper
Stream
← 3x19 The Once and Future Flash	3x21 → Cause and Effect
The Flash — Season Three

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I Know Who You Are is the twentieth episode of the third season of The Flash, and the sixty-sixth episode overall.

Starring: Grant Gustin (Barry Allen / The Flash, Savitar), Candice Patton (Iris West), Danielle Panabaker (Dr. Caitlin Snow / Killer Frost), Carlos Valdes (Cisco Ramon / Vibe), Keiynan Lonsdale (Wally West / Kid Flash)

with Tom Cavanagh (Harrison "H.R." Wells (Earth-19))

and Jesse L. Martin (Detective Joe West)

Special Appearance by Tom Felton (Julian Albert)

Guest Starring: Anne Dudek (Tracy Brand), Danielle Nicolet (Cecile Horton)

Guest Starring (end credits): Andre Tricoteux (Savitar)

Uncredited: Tobin Bell (Savitar (voice))